Mechanical Engineering - Thermodynamics - Discussion
Discussion Forum : Thermodynamics - Section 5 (Q.No. 25)
25.
According to Kelvin-Planck's statement, a perpetual motion of the __________ is impossible.
Discussion:
5 comments Page 1 of 1.
Rajesh said:
9 years ago
Any device that violates the first or the second law of thermodynamics is called a perpetual motion machine.
Perpetual machine of the first kind: produces more energy than supplied.
Perpetual motion machine of the second kind : Allows the efficiency of cyclic heat engines to approach 100%.
Perpetual machine of the first kind: produces more energy than supplied.
Perpetual motion machine of the second kind : Allows the efficiency of cyclic heat engines to approach 100%.
(1)
Satya said:
9 years ago
Please explain what is first kind & second kind?
Deepak said:
8 years ago
@Samir.
They are an imaginary type, not existing.
They are an imaginary type, not existing.
Samir said:
8 years ago
Could anyone give us some examples?
Shakti said:
8 years ago
Thanks. Very good explanation.
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